Add to ORKGThe unconventional supersonic tip speed of advanced propellers has led to uncertainties about Propfan's noise acceptability and compliance with Federal Aviation Noise Regulation (FAR 36). Overhead flight testing of the Propfan with an SR-7L blade during 1989's Propfan Test Assessment (PTA) Program have shown unexpectedly high far-field sound pressure levels. This study here attempts to provide insights into the acoustics of a single-rotating propeller (SRP) with supersonic tip speed. At the same time, the role of the atmosphere in shaping the far-field noise characteristics is investigated
The noise generated by supersonic-tip-speed propellers is addressed. Models of such propellers were ...
A method for predicting the noise field of a propfan operating at an angle of attack to the oncoming...
Cruise noise from an advanced turboprop aircraft is reviewed on the basis of available wind tunnel d...
A review of propeller noise prediction technology is presented. Two methods for the prediction of th...
Flight tests to define the far field tone source at cruise conditions were completed on the full sca...
A flight program was carried out to determine the variation of noise level with distance from a mode...
A model high-speed advanced propeller, SR-7A, was tested in the NASA Lewis 9x15 foot anechoic wind t...
The near field noise characteristics of a propfan operating at an angle of attack are examined utili...
Flight tests to define the far-field tone source at cruise conditions were completed on the full-sca...
A frequency-domain noncompact-source theory for the steady loading and volume-displacement (thicknes...
Detailed noise measurements were taken on the SR-7A propeller to investigate the behavior of the noi...
The aeroacoustics of advanced, high speed propellers (propfans) are reviewed from the perspective of...
High speed turboprops offer an attractive candidate for aircraft because of their high propulsive ef...
Noise generated by supersonic helical tip speed propellers is a possible cabin environment problem f...
A high tip speed turboprop is being considered as a future energy conservative airplane. The high ti...
The noise generated by supersonic-tip-speed propellers is addressed. Models of such propellers were ...
A method for predicting the noise field of a propfan operating at an angle of attack to the oncoming...
Cruise noise from an advanced turboprop aircraft is reviewed on the basis of available wind tunnel d...
A review of propeller noise prediction technology is presented. Two methods for the prediction of th...
Flight tests to define the far field tone source at cruise conditions were completed on the full sca...
A flight program was carried out to determine the variation of noise level with distance from a mode...
A model high-speed advanced propeller, SR-7A, was tested in the NASA Lewis 9x15 foot anechoic wind t...
The near field noise characteristics of a propfan operating at an angle of attack are examined utili...
Flight tests to define the far-field tone source at cruise conditions were completed on the full-sca...
A frequency-domain noncompact-source theory for the steady loading and volume-displacement (thicknes...
Detailed noise measurements were taken on the SR-7A propeller to investigate the behavior of the noi...
The aeroacoustics of advanced, high speed propellers (propfans) are reviewed from the perspective of...
High speed turboprops offer an attractive candidate for aircraft because of their high propulsive ef...
Noise generated by supersonic helical tip speed propellers is a possible cabin environment problem f...
A high tip speed turboprop is being considered as a future energy conservative airplane. The high ti...
The noise generated by supersonic-tip-speed propellers is addressed. Models of such propellers were ...
A method for predicting the noise field of a propfan operating at an angle of attack to the oncoming...
Cruise noise from an advanced turboprop aircraft is reviewed on the basis of available wind tunnel d...
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